Valve.



UNITED STATES CHARLES J. JACKSON, OF PLAINFIELD, NEW JERSEY.

VALVE.

Specification of Letters Patent.

Patented July 16, 1907.

Application filed June 16, 190B. Serial No. 265,324.

To yall, whom it may concern:

Be it known that I, CHAaLns' J. Jackson, a citizen of the United States,and a resident of Plainfield, in

i and more particularly to that kind or character thereof generally`known and referred to as a blow-0E cock, adapted for use for boilerblow off, water column blow-off, and which may also be employed betweencheck `and boiler, and between water column and boiler, the objectibeingto provide a device of this character which shall be simple andeconomical in construction, effective in use, and wherein the plug maybe easily and readily adjusted or tightened in the body or casing, orentirely removed therefrom.

With these and other ends in view, the invention consists in` certainnovel features of construction and combinations of parts, as will behereinafter fully de scribed and pointed out in the claims.

In the accompanying drawings Figures 1 and 2 are sectional views of myimproved device. Fig. 3 is a view in perspective of the detached plug. 4is a similar view of the bushing. Fig. 5 is a detached view of the screwemployed for the purpose of removing the plug and bushing from the body.Fig. 6 is a sectional view showing my improvement as applied to an anglevalve.

Referring ,to the drawings, 7 represents the casing or body ofthe,valve, provided with inlet and outlet ports 8 and with a centralchamber to contain the plug,

. the bottom 9 of said chamber being somewhat depressed and providedwith a sleeve 10 into which is `threaded the adjusting screw 11. Thewalls of this chamber slightly converge toward the bottom, in orderthat'the bushing 12 contained therein may be easily andy readily forcedout of the same. This bushing 12, made in fthe form of a hollowtruncated cone, and of any` desired material, such as metal, vulcanizedasbestos, etc., has its outer walls converging toward the lower end inconformity with the shape of the chamber in which it is contained, itsinner surface converging towards its upper end, as clearly illustratedin Figs. l,2 and 6, it vbeing materially thicker at its upper end thanat its lower end.

In Fig., 3, I have illustrated in perspective the plug or valve proper13, made in the form of atruncated cone, its lower end being of largerdiameter than its upper end, and made with a valve opening 14 therein, astem 15 `extending outwardly from its upper or smaller end and havingthe extreme end thereof squared to fit a `wrench or other tool, by meansof which the lsame is turned in the casing to open or close the valve.

This plug is contained within the bushing 12, and nicely fitted thereinto prevent the escape of steam between said plug and bushing, the taperof said plug corresponding to that of the inner surface of the bushing,the latter, however, being provided with a number of slits, holes oropenings 17, if desired, for containing a lubricating substance orcompound, such as graphite, grease or heavy oils, etc., and also ifdesired, with a groove or channel 18 leading from its upper edge to theopening 19, whereby oil or other lubricating substance may be suppliedbetween the surfaces of said plug and bushing to insure the easy turningof the former within the latter. l,

Within the bottom of'the chamber formed in the body is contained a plateor disk 20, provided on its edge with the upwardly extending flange 21,which when the parts are assembled, bears against the lower edge of thebushing 12', said plate or disk being also provided with a centralopening for the passage of the restricted end 22 of the adjusting screw11, the extreme end of which latter bears against the lower end of theplug 13.

On the upper end of the body or casing are formed the ears or lugs 23,to which is bolted the plate 24, the

latter being provided with the lugs 25 adapted to bear upon the upperedge of the bushing 12 and tightly and securely hold the latter in itsproper position within the body.

In assembling the parts, the plug 13 is inserted in the bushing 12,these two parts being then inserted within the body, the disk 20 havingfirst been properly placed within the lower end of the chamber. Thebushing is then forced down tightly in the body and the plate 24 boltedor otherwise secured in place, the lugs 25 thereon bearing on thebushing and preventing any movement ofthelatter. The screw l1 istheninserted inplace and turned until its restricted end 22 bearing againstthe r lower end of the plug, will force the latter up tightly in thebushing until the same becomes steam tight therein. By reason of thelubricating substance with which the perforations in the packing arefilled, the plug may be easily and readily turned, to open and closethevalve. If, however, it should become stuck, or wedged tightly withinthe bushing and rendered incapable of being turned therein, the screw 1lmay be slightly turned outwardly, and by a slight tap of a hammer,wrench or other tool, on the end of the stem 15, it will be slightlyforced downwardly in the bushing, readily yielding to the blow by reasonof its coneshape, whereupon it may be easily turned to open or close thesame, the screw bcing subsequently turned up to hold the plug in itsproper position.

When it is desired to take the valve apart, it is simply necessary toremove the plate 24, and substitute the screw 26, shown in Fig. 5, forthe screw 11. The en d of this screw 2G will, when turned home, bearupon the disk or plato 20, and by forcing the same upwardly by moans oi'tho screw, will torce the bushing outwardly l'rt'nn the body. It will beunderstood, of course, that in order to rcinove the bushing, it isnecessary only to slightly start it outwardly by means of said screw,after which it may be easily and readily lifted out of the body by moansof its flaring wall or surface.

In Fig. G, I have shown my improvements as applied to an angle valve orcock, wherein 27-28 represent the inlet and outlet ports ofthe body orcasing 29, the wall ot the casing slightly converging toward the lowerend, as in the case of the device above described. In the casing isinserted the bushing 30, also shaped and formed like that shown in Fig.4, with the exception, of course, of the location of the port or opening3l. In this bushing 30, is contained the plug 32, provided with theangle port 33, and ot the shape of a truncated cone, its lower end beinglarger than its upper end, the latter being provided with a stem, andsquared at its extreme end 34.

To the casing is secured the plate 35, provided with threaded screwopenings 36, registering with similar threaded openings 37 formed in theupper end of the bushing and adapted toreceive screws (not shown), saidplate being also provided with lugs 38 to bear upon the wall of thebody'or casing, and also upon the upper edge of the bushing 30, in orderto hold the latter down tightly in place.

When it is desired to remove the bushing, the plate 35 ot Fig. 6 isdetached and reversed, whereupon the circumfcrential flange 39 formed onsaid plate, will bear upon the upper edge o the body or casing. By meansot the screws (not shown), threaded in the openings 36 and 37 'thebushing may be then slightly raised or started from its position in thecasing 29, whereupon by removing the plate, it, said bushing, with itscontained plug, may be readily lifted out of the body or casing.

It will be understood from the foregoing that my invention isexceedingly simple, and unlike the valves or cocks now commonlyemployed, it may be easily and readily taken apart whe'n desired, is soconstructed and arranged that the plug is capable of being easily andreadily adjusted lengthwise in the bushing so as to render the samesteam tight therein, and that there is but little or no danger ofthesame becoming stuck or tightly wedged in the bushing.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. A blow-od cock having in combination a body provided with inlet andoutlet ports, a bushing contained in position in within said body andhaving thc outer surface of its walls converging toward one end, moanscarried by tho body adapted to bear against the larger cud oi' thobushing to seat Suid bushing, a cone-shaped plug contained within thebushing having.: its outer surface convergingr oppositcly to the outersurface of the bushing, uwaus for movingr the plug` lengthwise :1ndscaling.: it in lilo bushing, nml lucuns adapted to engage the smallerond of the bushingr lo unseat the bushing.

2. In a valve, the combination of a casing havingr inlet und outletports and an intermediate chamber, said cha1nber having convergingwalls, a bushingr having its outer surface converging,r to fit saidchamber, said bushing having its inner surface converging opposltely tothe outer surface, a cone-shaped plug seated ln the bushing, meansadapted to bear against the larger end of the plug to seat the plug inthe bushing, a plate within the casing having a peripheral edge adaptedto engage the smaller end of the bushing to unseat said bushing, and ascrew adapted to operate through the casingr to cause the plate to bearagainst the bushing.

3. ln a blow-ott cock, the combination with a body provided with inletand outlet ports, of a bushing contained within said body and having theouter surface of its walls converging toward the lower end, of meanscontained within said body and adapted to bear against the lowersmaller' end of said bushing for raising the latter, an adjustablecone-shaped plug contained within said bushing, and a plate secured tosaid body for holding said bushing in position, substantially asdescribed.

4. In a blow-olf cock, the combination with a body provided with inletand outlet ports, of a bushing contained within said body, the innersurface of the walls of which converges towards the upper end thereof, acone-shaped plug contained within said bushing, its upper smaller endbeing provided with a stem, a plate secured to said body and bearingagainst said bushing for holdingr the latter` said body, and a screwthreaded into the lower end of said body and having its end bearingagainst the lower larger end of said plug, whereby the latter may betightened in said bushing, substantially as described.

5. In a valve, the combination with a casing provided with inlet andoutlet ports, of a bushing within the casing having inner and outerwalls tapered in opposite directions whereby the bushingr is madethicker at one end than at the other, said bushing having openings inits walls filled with a lubricant, a cone-shaped plug tting within thebushing, and means for securing the bushing in the casing.

6. In a valve, the combination with a casingr provided with inlet andoutlet ports, of a cone-shaped bushing fitting the casing and havinginner walls tapered substantially opposite to the external taper of thebushing, said bushing having an opening through its sides and a grooveor channel leading from its upper edge to said opening..

Signed at New York, borough of Manhattan, in the county of New York,.andState of New York, this 14th day of June, A. D. 1905.

CHARLES J. JACKSON.

Witnesses:

Gnonon Coon,

M. VAN NoRTwIcK.

in positionA

